As part of the same enforcement action, the City Attorney's Office also filed charges against Rust and Sons Trucking Inc., the two owners of Ace High Truck Parts, and several individual truck drivers.

The City Attorney's Office has not historically filed charges involving improper transportation of hazardous materials, but Assistant City Attorney Patricia Bilgin said she wants to crack down on repeat offenders.

"This is the beginning," she said. "We're not going away. I never go away."